From b176038f989d98ac9f5f1dc2b52b6ef1723b2b78 Mon Sep 17 00:00:00 2001
From: Devang Patel <dpatel@apple.com>
Date: Mon, 17 Mar 2008 23:41:20 +0000
Subject: [PATCH] Update heuritics that estimates cost of call instructions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@48474 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Transforms/Scalar/LoopUnroll.cpp | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/lib/Transforms/Scalar/LoopUnroll.cpp b/lib/Transforms/Scalar/LoopUnroll.cpp
index ff8ece2aa8c..71a5955b76b 100644
--- a/lib/Transforms/Scalar/LoopUnroll.cpp
+++ b/lib/Transforms/Scalar/LoopUnroll.cpp
@@ -100,6 +100,11 @@ static unsigned ApproximateLoopSize(const Loop *L) {
         // Ignore instructions only used by the loop terminator.
       } else if (isa<DbgInfoIntrinsic>(I)) {
         // Ignore debug instructions
+      } else if (isa<CallInst>(I)) {
+        if (isa<IntrinsicInst>(I))
+          Size = Size + 3;
+        else
+          Size = Size + 10;
       } else {
         ++Size;
       }